Liu Hui was a Chinese mathematician, astronomer, and engineer who lived during the 3rd century CE. He is considered the father of Chinese mathematics for his contributions to the field, including the development of new methods for solving algebraic equations and the calculation of pi.

The Nine Chapters on the Mathematical Art is an ancient Chinese mathematical text that was compiled around the 1st century CE. It contains the earliest known examples of the use of negative numbers, as well as a variety of other mathematical topics, including algebra, geometry, and trigonometry.

Liu Hui developed the method of exhaustion, a precursor to modern integral calculus, in the 3rd century CE. This method involves dividing a shape into a large number of small pieces, and then calculating the area of each piece. The sum of the areas of the pieces then approximates the area of the original shape.

The Angle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees. This theorem was first discovered by Chinese mathematicians in the 1st century CE.

Qin Jiushao developed the first known method for solving cubic equations in the 13th century CE. His method, known as the Horner method, is still used today to solve cubic equations.

The Suan Shu Shu is an ancient Chinese mathematical text that was compiled around the 5th century CE. It contains the earliest known examples of the use of matrices, as well as a variety of other mathematical topics, including algebra, geometry, and trigonometry.

Sun Tzu developed the method of indeterminate analysis, a precursor to modern algebra, in the 5th century BCE. This method involves solving equations with an infinite number of solutions.

Heron's Formula states that the area of a triangle is equal to half the product of its base and height. This formula was first discovered by Chinese mathematicians in the 1st century CE.

Zhu Shijie developed the first known method for solving quartic equations in the 13th century CE. His method, known as the Zhu Shijie method, is still used today to solve quartic equations.

The Suan Shu Shu is an ancient Chinese mathematical text that was compiled around the 5th century CE. It contains the earliest known examples of the use of Pascal's triangle, a triangular array of binomial coefficients.

Liu Xin developed the method of double false position, a precursor to modern interpolation, in the 1st century CE. This method involves using two incorrect values to estimate the correct value of a function.

The Pythagorean Theorem states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the hypotenuse. This theorem was first discovered by Chinese mathematicians in the 6th century BCE.

Qin Jiushao developed the first known method for solving simultaneous linear equations in the 13th century CE. His method, known as the Qin Jiushao method, is still used today to solve simultaneous linear equations.

The Suan Shu Shu is an ancient Chinese mathematical text that was compiled around the 5th century CE. It contains the earliest known examples of the use of logarithms, a system for simplifying multiplication and division.

Zhu Shijie developed the first known method for solving cubic equations using Cardano's method in the 13th century CE. Cardano's method is a general method for solving cubic equations that was developed by the Italian mathematician Gerolamo Cardano in the 16th century CE.